2540068673 has 2 divisors, whose sum is σ = 2540068674. Its totient is φ = 2540068672.

The previous prime is 2540068627. The next prime is 2540068693. The reversal of 2540068673 is 3768600452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2009549584 + 530519089 = 44828^2 + 23033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540068673 - 2²⁶ = 2472959809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2540068673.

It is not a weakly prime, because it can be changed into another prime (2540068693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270034336 + 1270034337.

It is an arithmetic number, because the mean of its divisors is an integer number (1270034337).

Almost surely, 2^2540068673 is an apocalyptic number.

It is an amenable number.

2540068673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540068673 is an equidigital number, since it uses as much as digits as its factorization.

2540068673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2540068673 is about 50399.0939700309. The cubic root of 2540068673 is about 1364.4212859849.

The spelling of 2540068673 in words is "two billion, five hundred forty million, sixty-eight thousand, six hundred seventy-three".